diff --git a/book-11-lesson-5.module b/book-11-lesson-5.module
index 3af8bb6a..0dd84a7b 100644
--- a/book-11-lesson-5.module
+++ b/book-11-lesson-5.module
@@ -458,7 +458,7 @@ $PRODUCE The Shop That Serviced My Car
 ID: l5-s8
 REFERENCE: l5-s8-g
 INTRO: A whole neighborhood of shops, clerks, and mechanics. Complete each sentence with two words from the box — the connecting word (who or that for people, which or that for things) and a verb in its correct form: "service", "refund", "guarantee", "charge", "exchange", "leak", "credit", "tune up", "give back".
-INSTRUCTION: Type the connecting word and the verb in its correct form.
+INSTRUCTION: Type the connecting word and the verb in its correct form. Use each word from the box only once.
 INPUT: type
 CHECK: exact
 
diff --git a/book-12-lesson-2.module b/book-12-lesson-2.module
index 3e2f50c1..d4207560 100644
--- a/book-12-lesson-2.module
+++ b/book-12-lesson-2.module
@@ -221,7 +221,7 @@ INTRO: Listen to each question about Mark and Sam's conversation. Type your answ
 INSTRUCTION: Type your answer in a complete sentence.
 INPUT: type
 CHECK: llm
-RUBRIC: Accept any sentence that correctly conveys the factual meaning of the model answer based on the dialogue.
+RUBRIC: Accept any sentence that correctly conveys the factual meaning of the model answer based on the dialogue. For yes/no questions, a direct correct yes/no answer ("No, he isn't.") is acceptable without the model's extra detail.
 REPEAT
 
 PROMPT: Is Mark happy? {bk12-l2a-f3-01-q.mp3}
@@ -973,7 +973,7 @@ ACCEPT: No, I'ven't finished it yet.
 TEMPLATE: yes, already
 PROMPT: Has Janet graduated from college yet? {bk12-l2c-f2-01-q.mp3}
 RESPONSE: Yes, she has already graduated. {bk12-l2c-f2-01-a1.mp3}
-ACCEPT: Yes, she's already graduated.
+ACCEPT: Yes, she's already graduated. | Yes, she's already graduated from college. | Yes, she has already graduated from college.
 
 TEMPLATE: no, yet
 PROMPT: Has Janet graduated from college yet? {bk12-l2c-f2-01-q.mp3}
@@ -995,7 +995,7 @@ ACCEPT: No, I'ven't seen her yet.
 TEMPLATE: yes, already
 PROMPT: Has your son learned Spanish yet? {bk12-l2c-f2-03-q.mp3}
 RESPONSE: Yes, he's already learned Spanish. {bk12-l2c-f2-03-a1.mp3}
-ACCEPT: Yes, he has already learned Spanish.
+ACCEPT: Yes, he has already learned Spanish. | Yes, he's already learned it. | Yes, he has already learned it.
 
 TEMPLATE: no, yet
 PROMPT: Has your son learned Spanish yet? {bk12-l2c-f2-03-q.mp3}
@@ -1006,7 +1006,7 @@ ACCEPT: No, he'sn't learned Spanish yet.
 TEMPLATE: yes, already
 PROMPT: Have the Johnsons realized that they are rich yet? {bk12-l2c-f2-04-q.mp3}
 RESPONSE: Yes, they have already realized it. {bk12-l2c-f2-04-a1.mp3}
-ACCEPT: Yes, they've already realized it.
+ACCEPT: Yes, they've already realized it. | Yes, they've already realized that they are rich. | Yes, they have already realized that they are rich.
 
 TEMPLATE: no, yet
 PROMPT: Have the Johnsons realized that they are rich yet? {bk12-l2c-f2-04-q.mp3}